1Cover russet potatoes with cold water, bring to a boil, and cook for 12 minutes until halfway cooked.
2Shred the potatoes using a box grater.
3In a saucepan, melt 4tb of unsalted butter, add a small finely diced shallot and 2 sprigs of fresh thyme. Cook on low heat for a few minutes to infuse the butter.
4Strain the butter mixture over the shredded potatoes and season with kosher salt.
5Combine everything gently.
6Warm up a skillet over medium heat, add avocado oil and clarified butter.
7Add the potato mixture into the skillet and press it using a spatula to form a flat cake.
8Let the hash brown cook for 12-15 minutes until a crust sets.
9Invert the hash brown, add more clarified butter to the pan, and return the hash brown to the skillet.
10Cook for 5 minutes and then transfer to an oven set at 450°F for 10 minutes, until the bottom side is golden brown and crispy.
11Let the hash brown sit for 5 minutes, then garnish with flaky salt and fresh chives.